In https://bugs.openjdk.org/browse/JDK-8227229 we removed the usages of the -Xdebug option. However, I missed a few usages in the test/hotspot/jtreg tests:
test/hotspot/jtreg/serviceability/attach/ShMemLongName.java
test/hotspot/jtreg/vmTestbase/nsk/jdi/AttachingConnector/attach/attach004/TestDriver.java
test/hotspot/jtreg/vmTestbase/nsk/share/jpda/DebugeeBinder.java
After the integration of https://bugs.openjdk.org/browse/JDK-8227229 the usage of -Xdebug in these tests logs a deprecation warning. Given that this option has been a no-op, we should remove it from these tests.